#include<iostream>
#include <conio.h>
#include "Square.h"
using namespace std;

class Rectangle {
	int width;
	int height;
public:
	int area();
	void convert(Square a);
};
int Rectangle::area(){
	return (width * height);
}
void Rectangle::convert(Square a) {
	//width = a.side; bien side kieu truy cap la private nen khong the truy cap ngoai lop
	//height = a.side; bien side kieu truy cap la private nen khong the truy cap ngoai lop
}